SUICIDE AND CRISIS RISK DETECTION IN MENTAL HEALTH CHATBOTS: TECHNICAL APPROACHES, SAFETY EVIDENCE, AND GOVERNANCE CHALLENGES
Mental health chatbots built on large language models are now used at population scale, including by adolescents disclosing suicidal thoughts, yet the evidence base supporting them was generated to measure symptom change rather than crisis safety. This narrative review synthesises 43 records published between 2021 and...